Have you already tried "assembly-property-edits.xml" in the "src/main/karaf" folder of your custom distribution? I don't find the official documentation, but you can found examples using a search engine of your choose ;)
- How do i change a single line in a custom distro file? Martin Nielsen
- Re: How do i change a single line in a custom distro f... Francois Papon
- Re: How do i change a single line in a custom distro f... Markus Rathgeb